The performer shows a square tube. The tube can be folded absolutely flat. The audience is allowed to look through the tube from both sides. The tube is decorated on the outside and has colored stripes on the inside. The stripes are red. A silk of contrasting color, say blue, is placed inside the tube. The tube is made flat, when the tube is opened again the silk has changed from blue to red and the stripes inside the tube have changed from red to blue. The tube is once again shown to be completely empty.
You supply your own silks! One red and one Blue 9″.
Please note the picture shows the tube both flat and as a tube, this is for illustrative purposes (only one tube is supplied and necessary)





